body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;

    background-image: url("../resource/back2.webp");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}
header {
    margin-right: auto;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 6vw;
    max-height: 70px;
    background: rgb(139, 167, 185);
    z-index: 100;
    display: block;
    justify-content: space-between;
    opacity: 1;
}

.centering{
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.span_header{
    max-width: 100%;
    max-height: 70px;
    height: 100%;
    display: flex;
}

a.anchor{
    display: block;
    padding-top: 70px;
    margin-top: -70px;
}

.header_logo{
    padding:3px;
    width:8%;
    max-width: 90px;
    height: 95%;
    max-height: 70px;
    position: relative;
    object-fit: contain;
}

.header_name{
    width:45%;
    height: 95%;
    max-height: 70px;
    margin: 0;
    left:5px;
    font-size: min(5vw,55px);
}

.nav_span{
    width:47%;
    height: 50%;
    max-height: 70px;
    text-align: right;
    margin-top:auto;
    margin-bottom:auto;
    display:block;
}

nav {
    height:100%;
    display:flex;
    flex-direction: row-reverse; 
}
nav a {
    width: auto;
    max-height: 70px;
    margin-right: 1.1vw;
    color: #004080;
    text-decoration: none;
    font-size: min(1.5vw,18px);
    position: relative;
}

.main_logo{
    width: 90%;
    height:90%;
    object-fit: contain;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.content_span{
    max-width: 1000px;
}

.content {
    padding: 10px;
    margin-top:1rem;
    margin-right: auto;
    display: flex;
}

.main_section{
    margin-right: auto;
    max-width: 600px;
}
.news {
    font-size: min(1.2vw,18px);
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.news h2 {
    margin-top: 0;
    font-size: 1.5em;
    color: #004080;
}
.news-item {
    margin-bottom: 15px;
}


.span_title{
    font-family: Arial, sans-serif;
    font-weight: bolder;
    font-size:min(4vw,2em);
}

.span_point{
    font-size:min(2vw,1.5em);
    width:90%;
    height:auto;
    background-color: #fff;
    opacity: 0.9;
    border-radius: 5px;
    padding:1px 20px 20px 5px;
    margin-left: 3%;
}

.pict1{
    background-image: url("../resource/pict1.webp");
    background-position: right;
    background-size: 30% 100%;
    background-repeat: no-repeat;
}

.pict2{
    background-image: url("../resource/pict2.webp");
    background-position: right;
    background-size: 30% 100%;
    background-repeat: no-repeat;
}

.pict3{
    background-image: url("../resource/pict3.webp");
    background-position: right;
    background-size: 30% 100%;
    background-repeat: no-repeat;
}

.span_internal{
    font-size:min(2vw,70%);
    display:block;
    margin-left:20px;
}

.span_internal_service{
    font-size:min(2vw,60%);
    display:block;
    margin-left:20px;
}

th,td {
    border: solid 1px;
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 2px;
    padding-bottom: 2px;
}

table {
    border-collapse:  collapse;
}

.info_table{
    font-size:80%;
    margin-left: 2vw;
    margin-right: 2vw;
    text-align: left;
    background-color: #fff;
    opacity: 0.9;
}

.footer {
    background-color: #004080;
    color: white;
    padding: 10px 0;
    text-align: center;
    margin-top: 40px;
}